baber/WOPTO huggingface dataset:
Patent FR-2246952-A1 (FR)
Title: Wound electric capacitor - using high slip metallised thermoplastic film electrode with embossed projections to facilitate winding
IPC: H01G4/32
Filed: 1973-10-03
Abstract: The projections reduce the dynamic coefft. of friction to =0.7 (BS 2782311A moving sledge method). Pref. the film is a polyolefin, esp. polypropylene, or a copolymer of this with up to 10 wt.% unsatd. comonomer. Film thickness is 4-150 (6-15) mu. The projections are on the metallized side and formed before metallizing, e.g. as transverse flutes 1-10 microns high spaced 1 mm apart, giving a frictional coeft. of 0.45. The difficulty of winding into a close coil is overcome. Impregnation with dielectric fluid is easier, with less risk of voids and air pockets. No seprate spacing member is needed. Size for equiv. capacitance and rating is less than with paper dielectric.
Patent FR-2245819-A1 (FR)
Title: Inclined papermaking former - with controllable stock flow velocity
IPC: D21F9/02
Filed: 1973-09-27
Abstract: The forming wire of the papermaking machine can be adjustably and selectively inclined between the breast and wire rolls, with the latter being upper and forward of the former. The structure represents a compromise between the Fourdrinier and Cylinder type of machines. The fact that the wire is adjustably inclined gives a greater control over web formation, and water drainage. It is also much smaller in overall size than a Fourdrinier machine and can utilise stocks of very low consistency. It can be used to form non-woven sheets of synthetic fibres.
Patent FR-2256462-A1 (FR)
Title: Timing circuit for period between successive events - supplies signals representing each event to amplitude discriminator
IPC: G04F10/04
Filed: 1973-12-26
Abstract: The repetition rate of selected event pulses is measured. This repetition rate is compared with a reference repetition rate, to provide a start signal for the measuring interval when the measured rate is greater than the reference rate, and an end signal for the measuring interval when the measured rate is less than the reference rate. The time separating the two latter signals for the same event is measured to obtain a mean time for the event and the time separating the start signal of two successive events is also measured, so that the timing interval can be obtained by applying a given equation. The amplitude discriminator uses three stores (A, B, C) with a delay unit (3), a threshold detectors (1, 2) and a logic function generator (A, B, C).
Patent FR-2256612-A1 (FR)
Title: Television image projector for large screen - has contrast increased by reducing parasitic light and reflections
IPC: H04N5/74
Filed: 1973-12-28
Abstract: In a large screen projection system the reflecting properties of the mirror are completely suppressed in a precise rectangular zone having the same centre as the mirror. This zone is coated in a black material. The area between the external surface of the cathode ray tube, other than the rectangular luminescent image area, is also created in black material. The external surfaces of the mirror are protected from diffused light from the tube by means of a cover surrounding the tube face to prevent light rays being directed towards the mirror.
Patent FR-2255934-A1 (FR)
Title: Press filter for pulp - which is fed to several perforated drums and squeezed by an endless belt which passes round each drum
IPC: B30B9/24
Filed: 1973-12-28
Abstract: A press filter for squeezing pulp comprises several perforated drums which rotate on parallel axes and a closed endless belt which passes round a portion of each drum. Pulp is supplied through individual ducts to each drum from a central duct to be squeezed between the drums and the belt. Fluid from the pulp drains through the perforations into the drums and is discharged into an underlaying trough. The solids are removed upstream from where the belt leaves the drum surface by a pickup knife and a worm conveyor. The squeezed solids are prevented from resuckling fluid squeezed from the pulp as soon as the pressure decreases.
Patent FR-2262786-A1 (FR)
Title: Hot air column type grain dryer - with periodical opening of outlet flaps only when air outlet closed
IPC: A23N12/08
Filed: 1974-03-01
Abstract: Grain dryer is of the type comprising a column traversed laterally, during the movement of the grain, by at least one current of drying air; the column is fitted at its base with openings closed by retractable flaps, which are opened periodically for the discharge of the dried grain. The opposite walls are provided with holes; the lower part of wall communicates with the cold air inlet and the remaining portion of the wall is connected to the hot air inlet. The out-going air leaves the collector when the valves, controlled by the device are open. The hot air passing through the grain vaporises the water and entrains it in the form of vapour; the cold air at the base of the column cools the grain before it is extracted through the flaps. The dust nuisance is avoided because of the partial or complete blocking of the drying air passages during the periods the trap doors are open.
Patent FR-2273961-A1 (FR)
Title: Reciprocating pump or compressor sealing system - additional chamber sealed from driving mechanism collects escaped liquid
IPC: F04B53/12
Filed: 1974-06-06
Abstract: The reciprocating component works in a chamber with valve-controlled inlet and outlet ports, a first set of sealing devices isolating the component from the drive housing. A second chamber (14) is connected to the intake (3) upstream of the inlet valve (4), and the first sealind devices (13) are fitted between this chamber and the one (2) in which the component works. Second sealing devices (15) are fitted between the second chamber and the drive housing and mechanism (11, 12), where the component passes through the second chamber. Thus when there is a leak through the first sealing device the escaping liquid is collected in the second chamber and recycled without reaching the drive mechanism.
Patent FR-2269647-A1 (FR)
Title: Device extracting energy of the tides - uses motion of floating platform to drive generators via racks and pinions
IPC: F03B13/18
Filed: 1975-01-16
Abstract: The floating platform (1) is guided by vertical columns (2a, b, c, d, h, j) which are firmly embedded in the sea floor (4). The upper ends of the columns are connected by transverse members (3). The side of each column is provided with a toothed rack (8). A gear box (5) is mounted on teh platform close to each columns so that the rack rotates a pinion as the platform moves up and down with the tide. The gear box increases the speed in the ratio of 3000 to 1 to drive the generators (11). Accumulators may be provided to store energy for use at high or low tide when the platform is stationary.
Patent FR-2300962-A1 (FR)
Title: Recovery of heat from fluids at above 130 degrees C - by heat exchange with pressurised treated water part of which is flashed off
Inventor: PIROCHE HUBERT
IPC: F22B1/18
Filed: 1975-02-13
Abstract: A fluid at above 130 degrees C is cooled by treated water under press. in a heat exchanger so that the water leaving the exchanger is at least 130 degrees C, and it is at least 90% liquid. The water is passed into an expansion tank where the press. is controlled by a press. regulating valve and part of it flashes off to produce saturated steam which is re-used. the expansion tank is on the suction of a pump that recirculates under press. the water from the tank through the exchanger. For recovering heat from e.g. vapours coming from the top of a distillation column. Can easily be adapted to many industrial installations as the process is very flexible and requires little appts.
Patent FR-2302171-A1 (FR)
Title: Flash welding control - compares welding pulse duration with set value to adjust clamping jaw movement for constant input
Inventor: KUCHUK-YATSENKO SERGEI IVANOVI
IPC: B23K11/24
Filed: 1975-02-28
Abstract: In a control system for flash welding the welding pulse duration is measured during the fusion operation for every period of the reciprocating movements of the clamping jaws with the workpieces. The measured duration is compared with a desired value. In case of a deviation, the velocity of movement or the amplitude of the movement of the workpieces relative to each other is altered accordingly. This keeps the energy input for each pulse constant so that the workpieces are heated more uniformly, the quality of the weld is raised and the welding time can be reduced. The allowance for the fused part can also be reduced.
Patent FR-2311757-A1 (FR)
Title: Treating distillery effluent by recovering tartar and organic matter - without increasing the vol. of effluent during purificn.
IPC: C02F9/00
Filed: 1975-05-22
Abstract: The effluent consisting of the washing of wine lees, is purified by extn. of tartar and organic matter resulting in a discharge of treated effluent which does not exceed the vol. of incoming washings. Three principal stages are involved:- (1) crystallisation of tartar by controlled, successive additions of calcium sulphate and sodium carbonate; (2) hydrodynamic sepn. of the tartar: (3) recovery of organic materials. In a first stage, the washings are pref. mixed with calcium sulphate and the mixt. transferred to a crystalliser where sodium carbonate is added and the mixt. agitated while the pH value is measured automatically to control the rate at which the salts are added. In a second stage, controlled circulation brings the tartar to the surface for recovery (i.e. hydrodynamic recovery). In a third stage, recovery of organics is effected by flocculation adn skimming while the treated effluent is pref. discharged by overflow from the flocculation tank. Costly installations for decantation, filtration and centrifuging are no longer necessary. Compared with such previous installations, final effluent vols. is reduced by up to 66%.
Patent FR-2315676-A1 (FR)
Title: Hunting gun sighting system - has aiming strip at slight angle to barrel and provided with bead in groove
IPC: F41G1/42
Filed: 1975-06-25
Abstract: The rapid-firing sighting system is particularly for a medium-or short-range hunting gun. It has no sighting notch etc near the eve, but instead a first portion allowing the gun to be aimed very rapidly near its firing axis, and a second portion giving greater accuracy, particularly for aadjustment of the firing angle. The first portion may consist of one or more flat lengthwise aiming strips above the barrel and preferably beyond the firing chamber. The strip is at least a slight angle to the barrel axis. The second portion has a lengthwise groove formed in part of the strip and whose base is parallel to the barrel axis, with a bead on the groove centre line.
Patent FR-2318402-A1 (FR)
Title: Air jet probe or positioner - has shaft containing jet moved by air pressure regulated via electromechanical comparators
Inventor: FACON PIERRE JEAN ALPHONSE
IPC: G01B13/00
Filed: 1975-07-17
Abstract: An air jet probe or position transmitter determines position and thickness of a product. It can also position an object for microscopic examination or copying. Such a sensor is not subject to wear. A moving shaft (6) with a proximity nozzle (10) at one end is connected to a moving surface (5) attached to a flexible membrane (4) held between a case (1) and cover (2). The nozzle has a compressed air source (11). The air leaves via the nozzle and strikes the product. A lateral orifice (12) transmits a signal dependent on the gap between product and nozzle to control air flow to move the shaft. Shaft movement is detected by an electromechanical comparator (37, 38).
Patent FR-2284238-A1 (FR)
Title: Correction of shadow effect on video pictures - involves stores which are used to hold data generated as function of reference video signals
IPC: H04N5/217
Filed: 1975-08-28
Abstract: Video pictures correspond to a sample picture, and interferences causing the shadow effect come from the given video system and the source of the optical image. The reference video signals originate from an existing video system and an optical picture source in accordance with reference samples. The corrected video signals are then generated by modification of video signals generated in accordance with the existing video system and the optical image source, and they are modified in accordance with data stored in the above stores; these data are a function of the reference video signal which is generated in accordance with reference samples.
Patent FR-2322990-A1 (FR)
Title: Automatic car packing machine - has lift with revolving turntable, automatic space locating system and safety electrical cut-outs
IPC: E04H6/42
Filed: 1975-09-02
Abstract: The automatic car parking machine has a lift with turntable. Each parking location has a reference number and a photo-electric cell which detects the presence of a car. When parking, the control system directs the lift to the nearest unoccupied space and unloads the car from the turntable into the space. To return a car, the operator presses the number of the space from which he wishes to obtain the car. The lift then moves automatically to that space and returns with the car to the exit point. Safety stops prevent any rolling of the car in its space unless the turntable is at that location.
Patent FR-2324228-A1 (FR)
Title: Watering trough for pigs - has wall mounted water inlets at rear and central float to ensure constant level
IPC: A01K7/04
Filed: 1975-09-18
Abstract: The watering trough is made from cast aluminium, protected by an anti-corrosion coating. It is wall mounted (5,8,14) and used for pigs and similar animals. At the rear is a cast-in manifold, giving a selection (6,9,10,13,15) of water inlets, vertical or horizontal, available either side or top or bottom. Those not used are blanked off by plugs. The water is contained in a covered bowl (1,2) fed from below (12) and passing through a pipe (11). This is controlled by a float to give a constant water pressure. The bottom of the bowl has a depression (3) to collect dirt, cleaned out by removing a plug.
Patent FR-2289315-A1 (FR)
Title: Mfg. rolls of plastic sheet - by forming wide intermediate roll, and sawing in to narrower finished rolls
IPC: B65H35/02
Filed: 1975-10-28
Abstract: Rolls of a predefined width and sheet length are produced from plastic sheets, esp. relatively stiff sheets for furniture surfaces, by (a) forming a relatively large roll from the plastic sheet, (b) withdrawing the plastic sheet from the large roll, (c) guiding the sheet over an injection face, (d) rolling the sheet on a clamping shaft to form an inter. roll, with edge guiding and length measurement operations, (e) sawing the inter. roll into a finished roll of predefined width, and (f) withdrawing the finished roll from the clamping shaft. Rapid prodn. of rolls having an accurately predefined width and sheet length. Low energy consumption. Inspection of the sheet possible during the formation of the finished roll. Simple, inexpensive appts.
Patent FR-2335648-A1 (FR)
IPC: E01F13/02
Filed: 1975-12-18
Abstract: The fixture for the sign post consists of a round support bar (1) stuck into the ground (2) or supported by pedestal. At the top and bottom of the support are two forks (4, 5) spaced apart by a distance equal to that separating fixture brackets fixed onto the post. Alternatively, the distance between the branches of the forks is less than the gap between the existing brackets on the posts. This enables the top fork to be inserted through the bottom bracket.
Patent FR-2341309-A1 (FR)
Title: Psoriasis treatment compsns. - contg. urea oxide, anticoagulant and vitamin P factor
IPC: A61K38/00
Filed: 1976-02-20
Abstract: New medicaments contain 200-750 pts. wt. of urea oxide (I), 0.5-2.5 pts. wt. of an anticoagulant (e.g. dicoumaric and 1-3 pts. wt. of Vitamin P factor (e.g. rutine). Prods. are used for the treatment of dermatological disorders, esp. psoriasis, but also varicose ulcers, localised burns haemorrhoids etc., and are highly active with low toxicity. In tablets contg. 200-750mg (I), 0.5-2.5 mg anticoagulant and 1-3 mg Vit. P factor were administered orally, 1-5 times daily.
Patent FR-2343175-A1 (FR)
Title: Chain wheel for agricultural machinery drive - has teeth each formed with longitudinal groove and end recesses to receive chain links
IPC: F16H55/30
Filed: 1976-03-05
Abstract: The chain wheel is for use with the chain drives of agricultural machinery and the tooth (1) is specially shaped to prevent clogging by straw or compost. The tooth (1) has a central gap with parallel faces to receive a link which lies in the plane of the wheel. The flanks (6) of the tooth are provided with concave recesses to receive the semi-circular ends of the adjoining links. A deep recess (7) is provided between successive teeth and the bottom (8) of the recess (7) runs into the bottom (9) of the central gap in the tooth (1). These spaces between and the root surface of the teeth prevent pieces of straw being tapped and clogging the.
Patent FR-2345843-A1 (FR)
Title: Electric motor brake with spring actuation - has electromagnet releasing brake when motor is powered and manual release permitting access to armature
Inventor: GALANTE JACQUES
IPC: F16D65/14
Filed: 1976-03-22
Abstract: The motor brake with manual release for an electric motor (1) includes a rear fixed disc (5). An electromagnet support plate (6) carries the windings (8, 9) of the electromagnet and its magnetic coil (10, 11). An armature support disc (12) which carries the armature of the electromagnet. This disc is fitted with brake fittings (14) and a brake disc (16) is arranged on the axis of the motor. A spring (15) is fitted on the motor axis (3) between the rear fixed disc and the armature support disc. This spring is compressed by the action of the electro magnet when the motor is on and electromagnet is supplied. Braking is achieved when the supply to the electromagnet is interrupted. The rear fixed disc of the motor has a transveral aperture in it at a certain distance from the axis. This aperture is crossed by an axis (21) which is fixed to two linkages (23) arranged at its ends. The linkages (23) are designed to be displaced, against the action of the spring (15) by two diametrically opposed projections (22) on the armature support disc (12).
Patent FR-2319765-A1 (FR)
Title: Probe for use in drilling boreholes - for measuring the goniometric parameters of the drilling tool
Inventor: GROSSO DONALD S
IPC: E21B47/022
Filed: 1976-05-07
Abstract: Test device for periodic measurement of goniometric parameters of a borehole drilling tool, particularly for use in oil or gas wells, and for generating signals proportional to the measured parameters for transmission to the surface, comprises (a) a Cardan suspension with three axes having pick-ups responsive to gravitational force for determining a vertical and a horizontal plane, and a magnetic pick-up for determining the orientation with respect to the earth's magnetic field, nb) a drive unit for displacing each of the pick-ups from a first to a second position each second position having respectively a pre-determined orientation with respect to the directions of the gravitational and earth's magnetic fields, and (c) a control device for controlling the functioning of the drive unit and for measuring the amplitude of the displacement of each pick-up between its first and second positions. Device permits reproducible, reliable and precise measurements of the Goniometric parameters of the borehole drilling tool to be obtd.
Patent FR-2353439-A1 (FR)
Title: Vibration absorber for helicopter rotors - has sealed resonator boxes, mounted on hub with sloped sides forming track for high density metal ball
Inventor: MOUILLE RENE LOUIS
IPC: B64C27/00
Filed: 1976-06-04
Abstract: The vibration absorber for vibrations in the plane of a helicopter rotor, consists of at least two resonators attached to the hub (2) of the rotor by a rigid support. Each resonator is formed from two dished pieces (18, 19) which are secured together and sealed along side flanges to form an enclosure, inside which is trapped a metal, or metal alloy, ball (24) of high density. The side walls of the dished pieces (27, 28) are sloped so that they form a track for the ball when it is subjected to centrifugal and vibrational forces.
Patent FR-2355567-A1 (FR)
Title: Fixing radial blades on rotary shaft of food chopping machine - with improved security and facility to adjust balance
IPC: B02C18/20
Filed: 1976-06-24
Abstract: A location mounting for securing and balancing radial cutter blades on the high speed rotary shaft of a food chopping machine. From one face of each blade, a peg extends parallel to the axis of the shaft to engage a cavity in a spacing collar positioned next to the blade on the same shaft. The peg locates the blade w.r.t. the collar and a number of blades with complementary collars are locked axially together on the shaft e.g. by locking nuts on a screwed end of the shaft The bore of the blade is pref. elongated so that the blade can be displaced diametrally of the shaft within the limits of the elongation. This displacement is facilitated by having the blade peg engage a spiral slot in the adjacent face of the spacing collar; rotation of the collar will then alter the moment of inertia of the blade about the shaft axis. Fixing and balancing blades on the rotary shaft of a food chopping machine, partic. for chopping/mincing meat for butchers' and delicatessens' prods. Positive keying and fixing of blades to reduce possible hazards of detachment by centrifugal force at high speeds of rotation. The facility to adjust each blade across a dia. of the shaft, so that out-of-balance forces can be reduced to an extent where vibration is not a problem.
Patent FR-2362239-A1 (FR)
Title: Ballast bed building during railway track laying - has travelling shaper and ramming device with bunker ahead and overlapping conveyor above
Inventor: BOYER JEAN-JACQUES
IPC: E01B27/02
Filed: 1976-08-20
Abstract: The process for creating a ballast bed while railway track is being laid involves a device for shaping and ramming the layer of ballast (2). This can travel on the permanent way substructure (1) by being supported against it on both sides of the ballast bed being made. It incorporates a large-capacity bunker, emptying material onto the sector ahead of the shaping plates and rammer. There is an overlapping transport device, movable in the same way, above the shaping plates and manner. This incorporates containers directly loaded from the wagons (5), and able to effect direct unloading of ballast stones into the bunker, for shaping and ramming in place. 2,600 m3 of ballast can be laid in 12 hours, covering a sector 2,600 m long.
Patent FR-2328206-A1 (FR)
Title: Radiation detector - for use in e.g. fire detection using gas discharge tube
IPC: G01T1/18
Filed: 1976-10-15
Abstract: Radiation detector of the known type consisting of a tube containing a radiation-sensitive gaseous medium and a pair of electrodes and comprising (i) a high frequency potential source with is output, particularly a potential converter producing an a.c. high frequency potential from a low tension source, connected to a rectifier, (ii) a condenser in parallel with the electrodes of the detector tube, and having one electrode connected to the rectifier and the other to an output impedance, in such a way that the condenser is charged up to a pre-determined potential in the absence of radiation and discharges through the output impedance via the detector tube in the presence of radiations, whereby a pulse is applied to the output impedance. Gives a compact radiation detector of low current consumption which can be supplied from a low tension source, e.g. a rechargeable battery.